Larger wheels have a higher surface speed and cut faster.Cushion sewn buffs have two or more circles of sewing between the arbor hole and the face, giving them a medium density. For light cutting and general finishing applications.

The 4" wheel is to be used on a hand drill, do not use a cordless drill! The 6" is to be use on a bench grinder. An arbor is available for the 4" wheel to your drill.